基于STM32单片机的高精度超声波液位计设计  

High Resolution Ultrasonic Liquid Level Meter Based on STM32

作　　者：孙超[1] 吴修广[1] SUN Chao;WU Xiu-Guang(Zhejiang Institute of Hydraulics and Estuary,Hangzhou 310020,Zhejiang,China)

机构地区：[1]浙江省水利河口研究院,浙江杭州310020

出　　处：《浙江水利科技》2020年第2期39-41,共3页Zhejiang Hydrotechnics

基　　金：浙江省重点研发计划项目(2015C03003)。

摘　　要：阐述影响超声波测量精度的原因及对策,给出一种基于STM32单片机、高精度超声波液位传感器PICO+100/WK-I、24位AD采样芯片AD1256的液位计系统设计。经过率定及验证,在120.0~1000.0 mm量程范围内可以实现0.1 mm测量精度。This paper introduces the reasons for affecting the accuracy of ultrasonic measurement,describes a design of a liquid level meter system based on the STM32 MCU with high-precision ultrasonic sensor PICO+100/WK/I and 24-bit AD chip AD1256.An accuracy of 0.1 mm can be achieved with the range of 120.0-1000.0 mm after calibration and verification.

关 键 词：STM32 高精度超声波传感器 AD1256 液位计 

分 类 号：TV131.61[水利工程—水力学及河流动力学]